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MCP3905A/05L/06A
ELECTRICAL CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, all parameters apply at AV DD = DV DD = 4.5V – 5.5V,
Internal V REF , HPF turned on (AC mode), A GND , D GND = 0V, MCLK = 3.58 MHz; T A = -40°C to +85°C.
Parameter
Sym
Min
Typ
Max
Units
Comment
Reference Input
Input Range
Input Impedance
Input Capacitance
2.2
3.2
—
—
—
—
2.6
—
10
V
k Ω
pF
Analog Inputs
Maximum Signal Level
Differential Input Voltage
—
—
—
—
±1
±470/G
V
mV
CH0+,CH0-,CH1+,CH1- to A GND
G = PGA Gain on Channel 0
Range Channel 0
Differential Input Voltage
—
—
±660
mV
Range Channel 1
Input Impedance
Bandwidth
390
—
—
14
—
—
k Ω
kHz
Proportional to 1/MCLK frequency
Proportional to MCLK frequency,
(Notch Frequency)
Oscillator Input
MCLK/256
Frequency Range
MCLK
1
—
4
MHz
Power Specifications
Operating Voltage
4.5
—
5.5
V
AV DD, DV DD
I DD,A
I DD,D
I DD,A
I DD,D
—
—
2.7
1.2
3.0
2.0
mA
mA
AV DD pin only
DV DD pin only
Note 1:
2:
3:
4:
5:
6:
7:
Measurement error = (Energy Measured By Device - True Energy)/True Energy * 100%. Accuracy is
measured with signal (±660 mV) on Channel 1. F OUT0 , F OUT1 pulse outputs. Valid from 45 Hz to 65 Hz.
See typical performance curves for higher frequencies and increased dynamic range.
Does not include internal V REF . Gain = 1, CH0 = 470 mVDC, CH1 = 660 mVDC, difference between
measured output frequency and expected transfer function.
Percent of HF OUT output frequency variation; Includes external V REF = 2.5V, CH1 = 100 mVRMS @
50 Hz, CH2 = 100 mVRMS @ 50 Hz, AV DD = 5V + 1V pp @ 100 Hz. DC PSRR: 5V ±500 mV
Error applies down to 60 degree lead (PF = 0.5 capacitive) and 60 degree lag (PF = 0.5 inductive).
Refer to Section 4.0 “Device Overview” for complete description.
Specified by characterization, not production tested.
1 MCLK period at 3.58 MHz is equivalent to less than <0.005 degrees at 50 or 60 Hz.
TEMPERATURE CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, V DD = 4.5V – 5.5V, A GND , D GND = 0V.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Temperature Ranges
Specified Temperature Range
T A
-40
—
+85
°C
Operating Temperature Range
Storage Temperature Range
T A
T A
-40
-65
—
—
+125
+150
°C
°C
( Note )
Note:
The MCP3905A/05L/06A operate over this extended temperature range, but with reduced performance. In
any case, the Junction Temperature (T J ) must not exceed the Absolute Maximum specification of +150°C.
DS22011B-page 4
? 2006-2011 Microchip Technology Inc.
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